India has carried out the execution of Yakub Memon, the man convicted of financing the deadly 1993 Mumbai bombings.
Memon was hanged at a prison in Nagpur in the western state of Maharashtra.
The serial blasts killed 257 people, and were allegedly to avenge the killing of Muslims in riots a few months earlier.
India rarely carries out death sentences – only three other people have been executed since 2004.
There was tight security around the Nagpur prison on Thursday morning, and in parts of the state capital, Mumbai.
The March 1993 blasts targeted a dozen sites, including the Bombay Stock Exchange, the offices of national carrier Air India and a luxury hotel.
Yakub Memon with a police guard in Mumbai
Memon was sentenced to death in 2007 after being convicted of providing financial and logistical support for the bombings.
Memon was hanged hours after the Supreme Court dismissed a final plea to stay the sentence.
His lawyers had argued that executions can only be carried out after seven days have passed following the rejection of a mercy petition.
The court opened its doors in the dead of the night to hear his last appeal for mercy, but rejected it just before dawn.
The court ruled that because his first mercy petition had been rejected last year, the execution met the required rules, said media reports.